Sheet-metal sealing-cap for bottles.



Patented July 8. |902. N. B. ABBOTT.

SHEET METAL SEALING CAP FR BOTTLES.'

Application med Feb. e, 1902.)

(No Model.)

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WI TNESSES THE Norms percus co. mom-nwo, vvnyyrlnm4 u aA UNITED STATES PATENT OFFICE.

NATHANIEL B. ABBOTT, OF BALTIMORE, MARYLAND, ASSIGNOR TO IMPERIAL BOTTLE CAP tb MACHINE COMPANY, OF BALTIMORE, MARYLAND, A CORPORATION OF DELAWARE.

SHEET-METAL SEALING-CAP FOR BOTTLES.

SPECIFICATION forming part of Letters Patent No. 704,167, dated'July 8, 1902.

Application filed February 6, 1902. Serial No. 92,885. (No model.)

To @Zi whom t may concern: 128,849, dated July 9, 1872, to S. S. Butler;

Be it known that I, NATHANIEL B. ABBOTT, No. 88,617, dated May-19, 1863, to N. P.

a citizen of the United States, and aresident Whittlesey; No. 468,258, dated February 2,

of the city of Baltimore, State of Maryland, 1892, to IVilliam Painter, and No. 521,752,

5 have invented certain new and useful Imdated June 19, 189i, granted to myself. 55

provements in Sheet-Metal Sealing-Oaps for Most of those devices, particularly that de- Bottles, of which the followingis a full, clear, scribed in Letters Patent No. 468,258 to W'iland exact description, reference being had to liam Painter, were designed for use on and the accompanying drawings, forming a part applicable only to specific forms of bottlero of this specification. v heads, respectively, and so, also, with my 6o My invention relates to sheet-metal sealpresent new sealing-cap, which, while useful ing-caps used for sealing bottles, and has for on other than one form of bottle-head, is esits object to produce a paper-lined sheetpecially applicable to the smooth-necked tanietal sealing-cap composed of a metallic expered bottle -head shown and described in i5 terior and a paper interior throughout, with above-mentioned Letters Patent No. 521,752 65 connecting and combininglneans between the granted to me and also illustrated in the acsame, the concrete cap having an integral companying drawings. continuous pendent flange with crimps or cor- Metallic sealing-caps which have an interugations exteriorly (in the metal portion) to gral and continuous annular pendent flange 2o adapt it to be compressed circumferentially crimped or corrugated, while well-known in 7o on a bottle -head and interiorly presenting the art and externally similanbelong to two throughout (by its paper -lining portion) a wholly different and distinct classes governed soft, smooth, and unbroken surface, each by the character of the interior superficies of element being integral as to its crown and the cap and its flange. For example, the

25 fiange. flange or rim of the cap of Patent No. 468,258 75 My invention also comprises certain novel to Painter has interior ribs or corrugations, detail features of construction hereinafter dewhich are essential, as described, to enable scribed. it to be locked over and around an exterior In the drawings illustrating my invention, annular shoulder on the neck of the bottle- 3o Figure 1 is an elevation in perspective of one head shown and described in said patent, 8o form of my sealing-cap; Fig. 2, an enlarged while the other class is represented by the cap section thereof; and Fig. 3 a like section in described in Patent No. 521,752, granted to place on a bottle-head having a tapered neck, me, in which it is essential that they present said view being designed to show the form of a perfectly-smooth surface on the whole in- 35 bottle to which the cap is most applicable. terior of the annular flange and preferably of 85 Fig. d is an elevation illustrating the cap of the crown also of the cap and also be lined Fig. 1 with the addition of a detail feature with a relatively compressible lining in order sometimes employed 5 Fig. 5, a section therethat said lined flange may be tightly sealed of, and Fig. 6 a section of the device of Figs. against the smooth-necked bottle shown and 4o 4. and 5 after it is compressed on the bottle, described in my said patent and also serve to 9o and Fig. 7 is a segment of an exaggerated hold the crown of the cap ora disk interposed sectional View on the line 1 2 of Fig. 3. therein tightly and xedly against the mouth It is well known to those skilled in the art of the bottle. that sheet-metal sealing-caps with a pendent The desideratum in sheet-metal sealing a5 continuous annular rim or iiange slitted, incaps of the class last referred to, to which 95 dented, crimped, or corrugated and some of my present invention belongs, is that the conthem partly lined with wax or paper, su ppiied tinuous pendent annular ange should be inwith cork disks, retaining-plates, dro., havo dented, crimped, or corrugated to take up the been extensively used. Illustrations of these surplus metal when the iange is circumfer- 50 may be found in prior Letters Patent, No. entially compressed to a smaller circumfer--` roo ence around the tapered neck end of the bottle andyet that the cap shall, notwithstanding the indentations, crimps, or corrugatious, present a perfectly-smooth surface interior-ly, that it shall be lined throughout with a relatively compressible material, such as thick paper, and, nally, that the sheet-metal paper-lined cap shall be a concrete devicenamely, one in which the paper lining is so connected and combined with the metallic exterior that it cannot be easily detached therefrom. Two essential features which impart the greatest utility to such a cap, and without which it would be of little utility and commercially valueless, are, first, that the paper lining shall be in itself an interior paper cap integral throughout and shall cover the entire interior of the cap, and, secondly, that it shall adhere to and be held within the exterior metal cap. My present invention to these ends consists in a paper-lined sheetmetal sealing-cap comprising these two essential novel features last recited.

My invention also consists in providing the central portion of the crown of the cap with diametric depressions,preferably two of them, crossing each other, and these depressions or ribs in the metal enter the paper lining incidentally to hold the two together, but chiefly to enable thinner metal to be used, as the crown is subjected to great pressure when the cap is sealed on the bottle-head.

Referring now to Figs. l and 4 of the drawings and the sectional views thereof, Figs. 2 and 5, I form the finished cap, Figs. l and 4, from a sheet-metal blank and a thick paper blank, each being merely sections of thick paper and sheet-tin, respectively, and these being placed in position, the former over the latter, and the two in that position placed in a stamping-up press of the general character used for stamping up sheet-metal forms, the blanks are ready to be acted on to form the cap, the dies thereof being of the requisite form to produce a shaped cap having a diskshaped crown ct and an integral pendent continuous annular flange b, which is to be substantially at right angles with the horizontal plane of the crown, the line of junction of crown and flange being slightly rounded, (which, however, is the usual result of bending the metal,) and a series of substantially parallel corrugations c, which are longitudinal-that is to say, in line with the axis of the crown-said corrugations extending from the line of the lower edge of the aforesaid bend or curve at the junction of crown and flange to the extreme annular edge or rim of the iiange. In lieu of these corrugations a series of indentations, such as shown in Patent No. 521,752, may be substituted, arranged inlike manner relatively to the whole flange below the bend from the crown; but they are not so desirable nor effective as the corrugations. For greater certainty in securing the paper lining within the metallic cap and for other purposes hereinafter mentioned I prefer to of the crimps or corrugations on the sheetf metal flange entering to some extent, but not passing through, the paper lining next the same. Hence the interiorsurface of the flange vof the paper-lining cap, while fastened thereby to the exterior metal cap, is left perfectly smooth interiorly and most suitable for my purpose of sealing taper-necked bottles.

A valuable detail feature in the device is the central diametric ribs d in the crown. These also form combining means between the metal and the paper, and they enable thinner metal to be used, because without them thicker metal must be used to resist the impact-blow when a circular section of the crown is forced into the bottle-mouth by the closingpress employed, as shown in the sectional view, Fig. 6. These ribs enter the bottlemouth, as shown in said Fig. 6, and aid in holding the cap in position.

In sealing the bottle the cap, Figs. l and 2, is placed thereon, as shown in Fig. 3, and the corrugated flange compressed circumferentially around the tapered neck below the mouth of the bottle by suitable means, preferably by either of the clamping devices shown in United States Patents Nos. 521,751 and 563,552, granted to myself and Robert Brass, respectively. I deem it best, however, that these clamping means should also have die portions, which force into the bottle-mouth a circular section of the cap crown, (indicated by the dotted lines in Fig. 4,) with the result (especially where the diametric depressions d are employed) that this circular depression and these ribs both aid very materially in holding the cap firmly in position on the bottle, because they and the paper lining and disk below them are thus forced into the bottlemouth.

In Fig. G I have shown a form of tapernecked bottle having a top annular bead f, and for some purposes this form of bottlehead is preferred by users, and I have shown it only to illustrate that my cap is not conned to use on the single form of bottle-head shown in Fig. 3.

Another valuable element of` utility in my new paper-lined cap is that in sealing bottles used for holding liquids which give od gases, wherein it is desirable to use a mouth-disk,

IOC

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such a disk,made of textile fabric-for examv ple, cotton-duck,(indicated at e in Figs. 5 and 6)-can easily be set into the crown of my paper-lined cap and be sufiiciently well held therein until the cap is used by making the disk a close fit circumferentially within the crown yor by previously touching the inner side of the textile disk with gum-arabic or other harmless gum, which will easily hold it sufficiently well attached for the purpose to the crown portion of the paper lining of the cap. This is particularly useful,because eX- perience has demonstrated that a cotton-duck disk is superior to cork and will swell when moistened by the liquid contents of the bottle, causing it to make almost a hermeticallysealed joint with the rim of the bottle-mouth.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. A paper-lined sheet-metal sealing-cap composed of a metallic crown circular in outline with integral pendent annular flange, an adherent paper lining therefor coextensive with and conforming to the interior thereof, and longitudinal crimps or corrugations in the metal flange the inner ribs of which are embedded in the coinciding surface of the paper flange without penetrating through the same, said paper flange thereby retaining a smooth interior surface.

2. A paper-lined sheet-metal sealing-cap, composed of a sheet-metal portion having a circular crown with integral pendent annular flange, an adherent like-shaped paper lining therefor, a series of longitudinal crimps or corrugations in the sheet-metal flange, the inner ribs of which are embedded in the coinciding surface of the paper-lining flange without penetrating through the same, said concrete flange having a crimped exterior metallic surface and a smooth interior paper surface, and diametric ribs in the crown of the concrete cap of less length than the diameter thereof.

3. A paper-lined sheet-metal sealing-cap, composed of a sheet-metal circular crown with an integral pendent annular iiange, a likeshaped paper lining therefor tting closely within the interior of the metal cap and its flange, said sheet-metal crown being provided with diametri@ depressions embedded in the surface of the interior paper crown, of less length than the full diameter of the crown.

4. In combination with a bottle, a paperlined sheet-metal sealing-cap therefor consisting of an exterior metallic portion and an interior like-shaped coeXtensive paper-lining portion, each having a circular crown with integral pendent annular flange, the flange of the paper lining having a smooth interior surface, and the metallic portion of the concrete paper-lined flange having longitudinal corrugations entering without penetrating through or interrupting the smooth interior surface of the paper flange, and circumferentially compressed around the bottle-neck and against the interposed interiorly-smooth paper-lining flange.

5. In combination with a bottle, a paperlined sheet-metal sealing-cap therefor, consisting of an exterior metallic port-ion and an interior like-shaped coextensive paper-lining portion, each composed of a circular crown with central diametric ribs and each having an integral pendent annular flange, the iange of the paper vlining having a smooth interior surface, and the metallic portion of the concrete paper-lined ange having longitudinal corrugations entering without pene.- trating through or interrupting the smooth interior surface of the paper ange, and circumferentially compressed around the bottle-neck and against the interposed interiorlysmooth paper-lining flange, and a central section of both metal and paper of the crown of the concrete cap being forced into the bot- 

